Table 3. Estimated underreporting of Shigella by prevalence in under five children with diarrhea in Zambia.

	Reported dysentery cases by MOH HMIS data			Expected Shigella cases if prevalence was 34.7%
Year	Diarrhea (non-bloody and dysentery) OPD	Dysentery cases	Dysentery (%)	Shigella cases	Missed Shigella cases	Shigella cases missed (%)
2020	5,478,925	11,332	0.21%	1,901,187	1,889,855	99.40%
2019	5,730,470	13,100	0.23%	1,988,473	1,975,373	99.34%
2018	5,857,526	14,675	0.25%	2,032,562	2,017,887	99.28%